I am doing some stuff with the following feed:
http://www.google.com/reader/public/atom/user/16440287289307768570/state/com.google/broadcast
I can access all the info for the items perfectly, but I am trying to figure out how to get to the stuff at the beginning of the file such as:
generator
link
title
author/name
updated
and I am completely stuck.
Thanks!
Scott.
One last question.....
On the same feed, each entry has an optional set of elements like
<category term="mario kart"/>
<category term="mario kart wii"/>
<category term="MarioKart"/>
<category term="MarioKartWii"/>
<category term="wii"/>
<category term="wii wheel"/>
<category term="WiiWheel"/>How can I loop thru those? It changes how many terms there are (if any) on each entry.
Thanks!
Your script is saving me hours of work.
Hi,
Magic Parser will have resolved these duplicate entries by appending @1, @2.. etc. to the end of each additional field. In this case, the best way to handle it is simply to loop though $record looking for "CATEGORY-TERM" at the beginning of the field name and using the value as required; for example:
foreach($record as $k => $v)
{
if (substr($k,"CATEGORY-TERM")===0)
{
print $v;
}
}Hope this helps!
Cheers,
David.
Hmmm... If I do a print_r on $record, this is what I am getting:
[CATEGORY] =>
[CATEGORY-TERM] => mario kart
[CATEGORY@1] =>
[CATEGORY@1-TERM] => mario kart wii
[CATEGORY@2] =>
[CATEGORY@2-TERM] => MarioKart
[CATEGORY@3] =>
[CATEGORY@3-TERM] => MarioKartWii
[CATEGORY@4] =>
[CATEGORY@4-TERM] => wii
[CATEGORY@5] =>
[CATEGORY@5-TERM] => wii wheel
[CATEGORY@6] =>
[CATEGORY@6-TERM] => WiiWheelSo I changed it to this:
foreach($record as $k => $v)
{
if (strpos($k, 'TERM' ) <> FALSE) {
echo $v;
}which seems to be working, but I just wanted to double check and make sure there wasn't a better way to do it.
Thanks!
Hi,
Sorry - yes that's fine - i'd misinterpreted how the field names would appear!
Cheers,
David.
Hi Scott,
Because the items at the beginning of the file are not part of each repeating record; they would need to be accessed by parsing the file with a higher level "Format String". As you will be currently using the following format string:
xml|FEED/ENTRY/...the value required to access the top level elements would be:
xml|FEED/The easiest way to use this is to have a separate record handler function for each level; for example:
<?phpfunction myHeaderRecordHandler($record)
{
}
function myRecordHandler($record)
{
}
$url = "http://....";
MagicParser_parse($url,"myHeaderRecordHandler","xml|FEED/");
MagicParser_parse($url,"myRecordHandler","xml|FEED/ENTRY/");
?>
If you need to use values from the header when processing each record; simply place the fields you need into global variables; declared as "global" in each of the record handler functions.
As a final point; the only drawback here is that it will involve requesting the feed twice which may not be desirable, both from a performance and resources on the remote server point of view. Therefore, what I would recommend is loading the XML into a string, and parsing the string instead of the URL directly; for example:
<?phpfunction myHeaderRecordHandler($record)
{
print $record["GENERATOR"];
}
function myRecordHandler($record)
{
print $record["TITLE"];
}
$url = "http://www.google.com/reader/public/atom/user/16440287289307768570/state/com.google/broadcast";
$xml = "";
$fp = fopen($url,"r");
while(!feof($fp)) $xml .= fread($fp,1024);
fclose($fp);
MagicParser_parse("string://".$xml,"myHeaderRecordHandler","xml|FEED/");
MagicParser_parse("string://".$xml,"myRecordHandler","xml|FEED/ENTRY/");
?>
Hope this helps!
Cheers,
David.